Photographic-film hanger



H. GOLLOMB PHOTOGRAPHIC FILM HANGER Flled March 24 1927 mm mm 6% Q April 24, 1928.

A ril 24, 1928. 1,666,895

'H. GOLLOMB PHOTOGRAPHI C FILM HANGER Filed March 24. 1927 2 Sheets-Sheet 2 F large developing Patented Apr. 24, 1928.

HERMAN GOLLOMB, OF BROOKLYN, NEW YORK.

PHOTOGRAPHIC-FILM HANGER.

Application filed March 24, 1927.

This invention relates to photographic film hangers, having reference especially to that class of hangers whereby photographic films, during the developing and drying stages, are held in an open frame by means of spring clips arranged and designed to engage the respective end corners of the film.

As heretofore. constructed such clips have been difficult to manipulate to effect the clamping and releasing of the film, in that it was necessary to manipulate the springs individually by thumb pressure, and hence, where many films were being treated in a plant, the work of the operator became laborious and irksome. Moreover much skill was required to ensure the accurate positioning and clamping of the film.

novel construction and arrangement of the film holding clips within the frame and combine therewith simple and efficient actuating devices which can be manipulated with ease and facility to open or close the clips for the purpose of gripping or releasing the film.

Another object of my invention is to provide a novel arrangement of stops for ensuring the accurate positioning of the edges of the films in the clips.

Another object of my invention is to provide a novel means for separating or stripping the edges of the film from the pins and jaws of the clips.

Another object of my invention is to provide a construction whereby the film is maintained under uniform longitudinal tension within the supporting frame.

With these and other objects in view my invention comprises novel features of construction and combinations of parts which will be. hereinafter described, and the scope of the invention then be define-d in the appended claims.

In the drawings Figure 1 is a front elevation of a photographic film hanger embodying my invention, showing a film as supported thereby.

Fig. 2 is a transverse horizontal section through the hanger, as on the line 22 of Fig. 1.

Fig. 3 is a vertical section through one of the upper clips, and adjuncts, as on the line 3-3 of Fig. 1, but showing the clip in normal raised and open condition.

An object of my invention is to provide a Serial No. 177,865.

Fig. 4 is a similar view, but showing the open clip depressed and embracing the edge 01f the film, preparatory to the closure of the c 1p.

Fig. 5 is a similar view, but showing the clip as engaged with the film and yiel'dingly raised and locked.

Fig. 6 is a perspective view of the cam lever connection for actuating the upper clips.

Fig. 7 is an elevation of one of the upper clips and adjuncts.

Fig. 8 is a perspective view from the rear of a portion of one of saidclips.

Fig. 9 is a section through the lower portion of the frame showing the latch lever for the adjacent rocker shaft which controls the operative position of the clips.

Fig. 10 is a front elevation of the lower portion of the hanger showing a modified form of the clips as engaged with a film.

Fig. 11 is a partial horizontal section, en-

larged, as on the line 1111 of Fig. 10, but

showing the clip in normal or closed position and the film omitted.

F ig.'12 is a rear elevation of one corner of the hanger showing the adjacent clip.

Fig. 13 is a vertical section through the clip, as on the line 1313 of Fig. 12.

Fig. 14 is a similar view showing the clip in closed or clamping position.

As illustrated in the drawings the hanger comprises an open rectangular frame embodying side bars 15, a bottom bar 16 and a top bar 17, the latter bar having end extensions which afford suspension members, as usual. The side bars are connected at their upper portions by a cross-bar 18 which is spaced somewhat below the top bar. The film, as 19, to be treated is supported bet-ween the cross-bar 18 and the bottom bar of the frame by means of upper and lower pairs of clips 20, 21, respectively, which are associated with the frame and are arranged and designed to receive and grip the upper and lower edges of the film, at the corners, in a manner to maintain the film eflieiently under slight tension. The clips are substantially similar in construction and operation saving as to formal variations incident to their right and left hand Positions within the frame, as will hereina ter appear.

Each of the clips, in the preferred construction illustrated, comprises a piece of relatively thin resilient metal appropriately formed and bent into substantially U-shape gles, or substantially to provide a fixed body portion 22 and a forward spring member .43, the latter having an inwardly inclined portion 24 terminating in a foot portion 25 parallel to and normally separated from the body portion. lhebody 22 and the free end portion 25 of the member 23 are formed with substantially j arallel extensions which constitute complementary clamping jaws 26, 27, resoectively. 'lhese jaws in the case of each of the upper clips extend downwardly and in the case of each of the lower clips extend upwardly, as shown. The free ends of the jaws 26, 27 are preferably flared to facilitate the entry therebetween of the adjacent horizontal edge of the film. One of the ja vs of each clip is preferably provided with a point or teat 28 which arranged and adapted engage and firmly hold the opposing face of the film, the companion aw caving therein a suitable opening 29 to accommodate the point. The jaw 27 of'each of the upper clips is provided at its outer e e with an extension which is bent at right so to the plane of t. jaw, at 30, to afford a guide and stop for the adjacent lateral edge of the film, and which extension is also suitably bent and formed with an eye 300 which is slidably fitted. to the ad acei t side bar 15 of the frame. The jaw 27 of'each of the lower clips is provided at its outer edge with a curved lip 30 which serves as a guide and stop for the adjacent lateral edge of the film. Each of toe free end portions 25 of the member has struck therefrom an angular tongue 31, which is spaced from the body 22 when the clamping jaws are open, such body having; therein an opening; 32 to permit the free passage of the tongue therethrough during the closing and opening of the jaw 27. The tongue 31 of each of the lower clips affords a stop for the opposing edge of the film when it positioned between the j aws, and the vertical lip of each lower and upper clip pulls the film from the adjacent pin 28 when the jaw 27 openedpreparatory to the re moval of the film. Moreover, in the event the film to a 26, the

of the adherence of proximate vertical lip strips the film from the j The outer end of the body portion 22 of each of the upper clips is formed with a horizontal overhanging portion 33 which is recessed, as at 34:, and slidably fitted to the adjacent side bar 15 of the frame. The free upper end of a leaf spring; 35, which is se cured at its lower end to the adjacent side bar 15, bears against the under side of the portion 33 and tends to maintain the clip yieldingly in raised position.

In the case of each of the lower pair of clips the body portion 22 is formed with a suitably-disposed depending tongue 36 ter minating in an eye whichtightly engages the messes bottom crossbar 16 of the frame. By this construction the lower clips 21, which re ceive the lower edge of the film, are fixedly secured to the frame, while the resiliently supported upper clips, which receive the up per edge of the film, are vertically movable below the crossbar 18. Hence when the up per clips are lowered against the pressure of thesprings and engaged with the ad- 'acent ed 'e of the film, they tend to pull the film upward and maintain it under uniform tension.

S mple and whereby the clips of each pair neousl actuated either toclamp to release the adjacent edge of the film positioned within the frame. The preferred means for this purpose comprises a trans 'rerse roclter shaft 38 which extends thro W forations in the curved ends 1 a respective clips and through slots 4L0 1n the inclined portions '24 of the spring members Each end of the shaft is provided with a cam or pressure member ll which is interposed between the outer face of the yielding end portion 25 of the adjacent clip and a depending tongue 42, which spaced from such portion 25, and which tongue is pref erably formed on or secured to the body of the clip.

efficient means are provided e simultalhe cam members ii at the respective ends of the shaft- 38 are so formed and positioned that when the rod is partially turned in one direction said cam members l ,ar against the opposing clip portions 25 and force them, against the spring acti on, toward the respective bodies 20, there-- by'pressing the respective aws 26, 27 against the proximate edge of the film in a manner to clamp the latter firmly in place. The roclrer shaft has fixed thereto, midway between its ends, one end of a latch lever is, by the manipulation of which. the shaft may be readily operated to effect the film clamping; or the film releasing; action of the clips. This lever is formed with a curved cam portion, which in the case of the lower shaft 38 bears against the upper surface of the bottom frame bar 16 when the lever swung downwardly and rearward-1y, and which lever in the case of the upper shaft 38 b iars agains; the under side of the crossbar 18 when the leveris swung upwardly and rearwardly.

The lower lever is fast on the lower shaft, and the contour of the cam surface of this lever is such that its frictional contact with the bar 16, when the lever is moved suliicient y to effect the clamping of the lower edge of the film by the clips 21, holds the parts in effective clamping; relation To release the lower edge of the film from the grasp of the clips 21 it is merely necessary to swing the lower lever forcibly outward from engagement with the frame bar.

The upper lever is mounted on the upper shaft 38. so as to have slight relative movement thereon, and to this end the hub of the lever has therein an arcuate slot 45 for the passage of a stop pin 46 projecting from the shaft. The contour of the cam surface of this lever is such that when the lever is swung upwardly and rearwardly an inclined portion a of such surface bears against the opposing cross-bar 18 in a manner to force the shaft 36 and its clips 20 downward against the action of the springs until the open jaws 2e, 27 of said clips embrace the upper edge of the film, as seen in Fig. at, which film has previously been clamped at its lower edge by the clips 21 In this movement the lever turns freely on its shaft by virtue of the pin and slot connection. This done a concentric portion 6 of the cam contacts with the cross-bar, and the shaft and its clips are thereby maintained at their lower level for a brief interval, during which the trailing end of the slot bears against the pin 46 and partially turns the shaft 38 so as'to close the jaws 2G, 27, as seen in Fig. 5, thereby clamping the interposed edge of the film and causing the points 28 to pierce the latter. The concentric portion 2) of the cam terminates in a depression or socket c which, when it is brought beneath the crossbar 18, is engaged by the latter by virtue of the slight upward movement of the shaft and clips by the retractive effect of the springs 35. The film is thus maintained ui'iiformly taut and the upper shaft 38 is effectively held in clamping relationto the clips.

To release the upper edge of the film from the grasp of the clips 20 it is merely necessary to swing the upper lever forcibly outward from the crossbar l8; whereupon the said clips are automatically opened and raised above the film.

In Figs. 10 to 1d, inch'isive, of the drawings, a modified form of film holding and releasing clip is shown as applied to the bot tom bar of the hanger fran'ie. I u this form the clip is normally closed by its inherent elasticity and the rocker-shaft 38 is operative to open the companion clips or to permit them to close. The spring metal blank from which each clip is formed is bent or folded to provide the front and rear members 22, 23, respectively. The rear member is formed with a depending retaining piece 36 which is secured to the frame bar 16, and which'piece is formed with an extension 47 that projects below and forwardly of the front member, terminating in a fixed ver tical jaw 26 having on its inner face a point 28. The free end of the forward or spring member is offset and inclined so as to cross the extension 47. terminating in a vertical jaw 27 which is normally separated from the jaw 26, as seen in Fig. 13. The jaw 27 is provided with an inwardly extending and lip-turned stripper lip 31 which is adapted to receive and support the lower edge of the film 19 when it is inter posed between the jaws, and this jaw 2'? is also provided with an orifice 29 to accommodate the point 28 when the movable jaw is closed to clamp the film. The jaw 27 is also fori'ned with an offset portion 42 against which bears a cam member ll on the end of the rocker shaft 38, which member is so formed and disposed that when the shaft is partially turned by actuation of the lever 45 the spring jaw 27 is forced outward. The lever l5 on the shaft enga cs the bottom bar 16 of the frame and la es the jaw 27 in open positiomthus permitting the ready positioning of the edge of the film between the jaws. \Vhen the film is seated in the two clips and the lever is unla'tched the spring jaws automatically close and grasp the film.

It is to be understood that my invention is not limited to the particular illustrative constructions herein disclosed, as the same may be modified within the principle of the invention and the scope of the appended claims.

I claim- 1. A film hanger comprising a frame having a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to be treated, the jaws of the respective clips being held by spring action in a normal position, and means for sin'iultaneously actuating said clips in opposition to the spring action and locking them in abnormal position.

2. A film hanger comprising a frame having a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to be-treated, the jaws of the respective clips being held by spring action in a normal position, and means for simultaneously actuating said clips in opposition to their spring action and locking them in abnormal position, said means comprising a transverse shaft having cam portions which co-act with the respective clips and having also a latch member arranged in co-operative relation to an adjacent portion of the frame.

3. A film hanger comprising a frame having a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to'be treated, the jaws of the respective clips being held by spring action in a normal position, and means for simi'iltaneously actuating said clips in opposition to their spring action and locking them in abnormal position, said means comprising a transverse shaft having its hearings in the said clips and having cam portions which co-act with the respective clips, and having also a latch member arranged in cooperative relation to an adjacent portion of the frame.

4. A film hanger comprising a frame hav ing a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to be treated, each of said clips comprising a piece of spring metal bent substantially U-shape and having complementary clamping jaws whereof one is in yielding relation to the other jaw, a tra1nsverse shaft having end cams which by partial rotatic'inof the shaft co-art with the yielding jawsof the I'QSPGLliTlYe clips to move them against their spring action, and means for locking the shaft inlits partially rotated position.

5. A film hanger comprising a frame having a plurality of spac=drapa it spring clips arranged and adapted to receive and clamp an edge a film to be treated, each of said clips com arising a piece of spring metal bent substantially ii-shape and having complementary clamping jaws whereof one is in yielding relation to the other jaw, a transverse shaft having end cainswlhich by partial rotation of the shaft co-act with the yielding airs of the respective clips to :move them against their spring action, :and an operating latch member on said shaft adapted to engage an adjacent portion of the frame When the shaft is partially rotated.

6. A film hanger comprising a frame hav ing a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to be treated, each oi said clips comprising a piece of spring metal bent substantially U-shape and having complementary clamping jaws whereof one is in yielding relation to the other jaw, a transverse shaft having end hearings in the bows of said clips and having cam portions which by partial rotation of the shaft co-act "With the yielding members of the respective clips to move them against their spring action, and means for locking the said shaft in the partially rotated position.

'4". In a film hanger, a frame including side bars and a rigid cross-bar, a plurality of spaced-apart spring clips to receive and clamp the upper edge of a film to be treated, the jaws of the respective clips beingvheld by their spring action in a normal position, means for resiliently supporting said below the cross-bar, and means for forcibly depressing said clips and also simultaneously actuating them in opposition to their spring action, said means including latch member which co-operates with the said cross bar.

clips.

ea set 8. In a film hanger, aframe including side bars and a rigid cross-bar, a plurality of spaced-apart spring clips to receive and clamp the upper edge of a film to be treated, the jaws of the respective clips being held. by their spring action in a normal position, means for resiliently supporting said clips below the crossbar, and means for forcibly depressing said clips ,id sinniltaneously actuating them in opposition to their spring action, said means including a shaft having clip actuating portions, a latch member mounted on said shaft and having a cam surface which cooperates with the cross-bar to force the shaft and the cilps downward until.

the clips embrace the upper edgeof the film, and then effects the closure and locking of the clips.

9. A film hanger comprising. a frame havmg a plurallty of spaced-apart spring clips arranged and adapted to receiveandclamp an edge of a film to be treated, the jaws of the respective clips being held by spring action in a normal position, each of saidrclips having a lateral edge stop for the film, and means for simultaneously actuating said clips in opposition to the spring action and locking them in abnormal position.

10. A film hanger comprising a frame having a plurality of spaced-apart spring clips arranged and adapted to receive and clamp an edge of a film to be treated, the jaws of the respective clips being held by sprin action in a normal position, each of said clips having a stripper member for engaging the edge of the film, and means for simultaneously actuating said clips in opposition to the spring action and locking them in abnormal position.

11. In a film hanger, a spring clip having complementary clamping jaws, whereof one is in yielding relation to the other aiv, one of said jaws having a stripper tongue Which engages an edge of the film.

12. In a film hanger, a spring clip having complementary clamping jaws, whereof one is in yielding relation to the other jaw, one of said jaws having an angular tongue struck therefromto afford a stripper for an edge ofthe film, the other jaw having a clearance opening for the said tongue.-

Signed at New York in the county and State of New York this 23d day of March A. D. 1927.

HERMAN G'OLLOMB; 

